Ean On Packing Slip

I am editing the packing slips to reduce pick errors. To make this happen I want to add the barcode on the packing slip. However this isn't a standard option in the document editor.

I am looking in the products table of the packing slip but I can't anything that might be the EAN. Anyone know how to add it?

What is EAN in your store? Is it product feature?

Yes we use it as a product feature

It is required to extend available set of variables in document editor. Hire someone to perform this modification for you

What is EAN in your store? Is it product feature?

I have created two features - one for ISBN and another for ISSN

But I can use also CODE for EAN, provided I am the only vendor on the marketplace.

What is the source for the creation of the barcode? Is it the CODE?